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Articles by Muhammad Rafique
Total Records ( 2 ) for Muhammad Rafique
  Kameel Arshad , Muhammad Rafique , Asad Majid and Shahida Jabeen
  In this research paper we have analyzed liquid-metal flow in a curved bend in the presence of a magnetic field, which acts in two transverse directions. The magnetic field along the x-axis varied as B0(R + x)-1, while the magnetic field in y-direction is kept constant. The duct has conducting vanadium walls and liquid metal (lithium, sodium and potassium) have been used as a coolant. Magneto hydrodynamic (MHD) equations in three dimensions have been developed in the modified toroidal coordinate system. Then these coupled set of equations are solved by using finite difference techniques and an extended SIMPLER algorithm approach and an estimation of MHD pressure drop has been made for three different liquid metals, namely lithium, sodium and potassium. The results for a curved bend indicate an immense axial MHD pressure drop. The axial MHD pressure drop for three liquid metals, increases for an increase in both kinds of magnetic fields. It has been found that the MHD pressure drop is maximum in the case of sodium and minimum in the case of lithium In this paper a detailed comparative analysis has been carried out to find a suitable fluid for the cooling of high heat flux components of a fusion reactor, which is compatible with liquid metal lithium blanket and can also remove the 5 MW m-2 heat flux falling on the limiter or diverter plate. We finally concluded that from MHD pressure drop point of view that liquid lithium is the best choice for cooling of high heat flux components of a fusion reactor.
  Muhammad Bashir Alvi , Muhammad Rafique , Muhammad Shafiq Tariq , Amer Hussain , Tariq Mahmood and Muhammad Sarwar
  Eight crosses of maize viz; F-103 x F-105, F-105 x F-103, F-113 x F-107, F-107 x F-113, F-138 x F-131, F-131 x F-138, F-147 x F-132, F-132 x F-147 were made. These crosses (F1) alongwith their parents were planted to study the heterosis for plant height (cm), ear height (cm), ear length (cm), ear diameter (cm), number of rows ear‾1, number of kernels row‾1, 1000-kernels weight (g) and yield plant‾1 (g) in F1 generation. It was concluded that a cross F-113 x F-107 showed maximum heterosis for yield and its components. Therefore this combination must be given due consideration to utilize for improving yield and its components in future breeding programme.
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